Struct datafusion::logical_expr::GetIndexedField

pub struct GetIndexedField {
    pub expr: Box<Expr, Global>,
    pub key: ScalarValue,
}

Returns the field of a arrow::array::ListArray or arrow::array::StructArray by key

Fields

expr: Box<Expr, Global>

the expression to take the field from

key: ScalarValue

The name of the field to take

Implementations

impl GetIndexedField

pub fn new(expr: Box<Expr, Global>, key: ScalarValue) -> GetIndexedField

Create a new GetIndexedField expression

Trait Implementations

impl Clone for GetIndexedField

fn clone(&self) -> GetIndexedField

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GetIndexedField

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Hash for GetIndexedField

fn hash<__H>(&self, state: &mut __H)where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<GetIndexedField> for GetIndexedField

fn eq(&self, other: &GetIndexedField) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for GetIndexedField

impl StructuralEq for GetIndexedField

impl StructuralPartialEq for GetIndexedField